Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10406629 | Method for joining metal members | Xiaojuan Ma, Tatsunori Tsunetou, Tsukasa Akiyama, Yohei Tomikawa | 2019-09-10 |
| 4417723 | Tuyere for blowing gases into molten metal bath container | Minoru Kitamura, Shuzo Ito, Masahiko Ohgami, Hideo Matsui, Isamu Hirose +2 more | 1983-11-29 |
| 4398949 | Method for stably refining high carbon steel | Minoru Kitamura, Shuzo Ito, Masahiko Ohgami, Hideaki Fujimoto | 1983-08-16 |